// 云函数入口文件
//获取订单信息
const cloud = require('wx-server-sdk')

cloud.init()

const db=cloud.database()
// 云函数入口函数
exports.main = async (event, context) => {
 var num=event.num
 var openid=event.openid
 var page=event.page
 var state=event.state
 
   return await db.collection('express').where({
    _openid:openid,
    state:state
   }).skip(page).limit(num).orderBy('time','desc').get()
}